255199 has 4 divisors (see below), whose sum is σ = 291664. Its totient is φ = 218736.

The previous prime is 255197. The next prime is 255209. The reversal of 255199 is 991552.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 255199 - 2¹ = 255197 is a prime.

It is a Duffinian number.

255199 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 255199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18222 + ... + 18235.

It is an arithmetic number, because the mean of its divisors is an integer number (72916).

2²⁵⁵¹⁹⁹ is an apocalyptic number.

255199 is a deficient number, since it is larger than the sum of its proper divisors (36465).

255199 is an equidigital number, since it uses as much as digits as its factorization.

255199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36464.

The product of its digits is 4050, while the sum is 31.

The square root of 255199 is about 505.1722478522. The cubic root of 255199 is about 63.4297485008.

It can be divided in two parts, 255 and 199, that added together give a palindrome (454).

The spelling of 255199 in words is "two hundred fifty-five thousand, one hundred ninety-nine".